Plate synthesized by waste circuit board powder and manufacturing process thereof

A process of manufacturing a zero-carbon high-fiber eco-friendly plate synthesized from waste circuit board powder, characterized in that, the process comprises the steps of:

• (a) sieving powder recycled from circuit board with a shaker and attracting metal residues with a magnet to avoid aggregation of raw material;
• (b) drying the powder recycled from circuit board, stirring and drying the powder recycled from circuit board in a drying oven at a constant temperature of 125° C., controlling water content in the powder recycled from circuit board not to exceed 3%;
• (c) performing a coarse crushing on a high-fiber auxiliary material, then crushing and grinding to process the high-fiber auxiliary material into wood fiber powder with a particle size of over 80 mesh, drying at a temperature of over 100° C., controlling the water content in the powder at a value between 2% and 4%;
• stirring and mixing the wood fiber powder at 180° C. to obtain carbon fiber powder;
• (d) mixing the powder recycled from circuit board and the carbon fiber powder at a certain ratio and stirring uniformly, adding processing agents at a certain ratio and mixing uniformly again;
• wherein the processing agents comprise a crosslinking agent, a waterproofing agent and a carbon filament fiber, the crosslinking agent is urea formaldehyde resin sol or phenolic resin sol, the waterproofing agent is one or more agent selected from the group consisting of paraffin wax, silicone oil, white oil and palm wax;
• (e) charging the mixed raw materials into a paving system with a constant speed, flattening the raw materials using a flattening roller, pressing the mixed raw materials after they are entered into a pre-press machine to form slabs having a uniform thickness, transporting the slabs using a conveying belt and then trimming vertically and horizontally, transporting plates to a multi-layer press to perform a molding pressing;
• pressing for 1 minute to make the pressure on the plate over 10 Mps, placing for 2 minutes followed by a repressing with the pressure of the repressing being over 14 Mps, pressing for 5 minutes followed by an air exhaust and a pressure relief process, with the pressure reduced gradually;
• (f) pulling out the plates after pressing, overturning the plates and wind cooling;
• (g) calibrating and sanding, quality testing and storing.